160 lines
5.3 KiB
Tcl
160 lines
5.3 KiB
Tcl
# Test power propagation, per-instance power breakdown, and activity querying.
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source ../../test/helpers.tcl
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suppress_msg 1140
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#---------------------------------------------------------------
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# Test 1: Power with GCD design and VCD - comprehensive
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#---------------------------------------------------------------
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puts "--- Test 1: GCD power with VCD ---"
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read_liberty ../../test/sky130hd/sky130_fd_sc_hd__tt_025C_1v80.lib
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read_verilog ../../examples/gcd_sky130hd.v
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link_design gcd
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read_sdc ../../examples/gcd_sky130hd.sdc
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# Read VCD to seed activities
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read_vcd -scope gcd_tb/gcd1 ../../examples/gcd_sky130hd.vcd.gz
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# Report power - exercises full power calculation pipeline
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report_power
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# Report power with different digit counts
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report_power -digits 2
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report_power -digits 8
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#---------------------------------------------------------------
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# Test 2: Instance-level power for specific cells
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# Exercises: power(Instance) paths for various cell types
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#---------------------------------------------------------------
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puts "--- Test 2: instance-level power ---"
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# Get all register instances
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set regs [all_registers -cells]
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set reg_count [llength $regs]
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puts "register cells: $reg_count"
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if { $reg_count > 0 } {
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report_power -instances [lrange $regs 0 2]
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}
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# Get combinational cells
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set all_cells [get_cells *]
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set combo_cells [list]
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foreach cell $all_cells {
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set cell_ref [get_property $cell ref_name]
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if { [string match "*buf*" $cell_ref] || [string match "*inv*" $cell_ref] || [string match "*nand*" $cell_ref] || [string match "*nor*" $cell_ref] || [string match "*and*" $cell_ref] || [string match "*or*" $cell_ref] } {
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lappend combo_cells $cell
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if { [llength $combo_cells] >= 5 } { break }
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}
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}
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if { [llength $combo_cells] > 0 } {
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report_power -instances $combo_cells
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report_power -instances $combo_cells -format json
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report_power -instances $combo_cells -digits 6
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}
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#---------------------------------------------------------------
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# Test 3: Highest power instances
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# Exercises: highestPowerInstances sorting
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#---------------------------------------------------------------
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puts "--- Test 3: highest power instances ---"
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# TODO: report_power -highest_power_instances broken (highest_power_instances SWIG fn removed)
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sta::report_power_highest_insts 3 [sta::cmd_scene] $sta_report_default_digits
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sta::report_power_highest_insts 10 [sta::cmd_scene] $sta_report_default_digits
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# JSON format not available via report_power_highest_insts - skip
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puts "highest_power_instances json: skipped (API removed)"
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sta::report_power_highest_insts 3 [sta::cmd_scene] 6
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#---------------------------------------------------------------
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# Test 4: Activity annotation report
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# Exercises: reportActivityAnnotation paths
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#---------------------------------------------------------------
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puts "--- Test 4: activity annotation ---"
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report_activity_annotation
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report_activity_annotation -report_annotated
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report_activity_annotation -report_unannotated
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#---------------------------------------------------------------
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# Test 5: Override VCD activities with manual settings
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# Exercises: setGlobalActivity, setInputActivity, setUserActivity paths
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#---------------------------------------------------------------
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puts "--- Test 5: activity overrides ---"
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# Set global activity - overrides VCD
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set_power_activity -global -activity 0.5 -duty 0.5
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report_power
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# Unset global
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unset_power_activity -global
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# Set input activity
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set_power_activity -input -activity 0.3 -duty 0.4
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report_power
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unset_power_activity -input
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# Set per-port activity
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set_power_activity -input_ports [get_ports req_msg[0]] -activity 0.8 -duty 0.5
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report_power
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unset_power_activity -input_ports [get_ports req_msg[0]]
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# Set per-pin activity
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set clk_pins [get_pins */CLK]
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if { [llength $clk_pins] > 0 } {
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set first_clk [lindex $clk_pins 0]
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set_power_activity -pins $first_clk -activity 1.0 -duty 0.5
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report_power
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unset_power_activity -pins $first_clk
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}
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# Set density-based activity
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set_power_activity -global -density 5e8 -duty 0.5
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report_power
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unset_power_activity -global
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#---------------------------------------------------------------
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# Test 6: SAIF-based power (different activity source)
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# Exercises: readSaif path, SAIF annotation
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#---------------------------------------------------------------
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puts "--- Test 6: SAIF power ---"
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# Re-read design
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read_liberty ../../test/sky130hd/sky130_fd_sc_hd__tt_025C_1v80.lib
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read_verilog ../../examples/gcd_sky130hd.v
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link_design gcd
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read_sdc ../../examples/gcd_sky130hd.sdc
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read_saif -scope gcd_tb/gcd1 ../../examples/gcd_sky130hd.saif.gz
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report_power
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# TODO: report_power -highest_power_instances broken (highest_power_instances SWIG fn removed)
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sta::report_power_highest_insts 5 [sta::cmd_scene] $sta_report_default_digits
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report_activity_annotation
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#---------------------------------------------------------------
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# Test 7: Power with no activity data (default propagation)
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# Exercises: ensureActivities default input activity paths
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#---------------------------------------------------------------
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puts "--- Test 7: power with defaults ---"
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read_liberty ../../test/sky130hd/sky130_fd_sc_hd__tt_025C_1v80.lib
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read_verilog ../../examples/gcd_sky130hd.v
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link_design gcd
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read_sdc ../../examples/gcd_sky130hd.sdc
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# No VCD or SAIF - relies on default activity propagation
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report_power
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report_power -format json
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report_activity_annotation
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